10mm to 1/4-32 Spark Plug Adaptor

Machined brass adaptor to allow use of 1/4-32mm spark plugs or standard glow plugs in 10m plug sockets.

Can be handy when cowl space is at a premium and you dont want large spark plugs supplied with some engines sticking out through the cowl.

Or used for conversion of Gas/Petrol engines with 10mm spark plug threads to methanol/glow fuels

Spark plug not included

Note: 1/4-32 Spark plugs have shorter life span than standard 10mm and 14mm plugs